Nothing like brown clumps to remind you that periods are, well, icky! But relax—you’re fine. When a girl’s flow is in full force, it tends to be red. But when it slows down, it becomes brown from air exposure.

Plus, your uterus is self-cleaning, so when you menstruate you shed its lining. That means clumps and clots are not only OK, they’re part of the process.

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